From f3cb9a81fb77ba18043fd53514b94a442f30219e Mon Sep 17 00:00:00 2001
From: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Date: Tue, 14 Oct 2025 22:14:54 +0200
Subject: [PATCH] Wrap the normally lazy-initialized components in ZTS

---
 ext/libxml/libxml.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/ext/libxml/libxml.c b/ext/libxml/libxml.c
index 8f57d6fb688..d5009889549 100644
--- a/ext/libxml/libxml.c
+++ b/ext/libxml/libxml.c
@@ -936,11 +936,13 @@ PHP_LIBXML_API void php_libxml_initialize(void)
 		ZEND_IGNORE_LEAKS_BEGIN();
 
 		xmlInitParser();
-#ifdef LIBXML_SCHEMAS_ENABLED
+#ifdef ZTS
+# ifdef LIBXML_SCHEMAS_ENABLED
 		xmlSchemaInitTypes();
-#endif
-#ifdef LIBXML_RELAXNG_ENABLED
+# endif
+# ifdef LIBXML_RELAXNG_ENABLED
 		xmlRelaxNGInitTypes();
+# endif
 #endif
 		ZEND_IGNORE_LEAKS_END();